Heating-furnace.



PATENTED JUNE 16, 1903.

J. P. BARKER.

HEATING FURNACE.

APPLIGATION FILED FEB. 17, 1903.

UNITED STATES Patented June 16, 1903.

PATENT OFFICE.

JOHN F. BARKER, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO GILBERT & BARKER MANUFACTURING COMPANY, OF SPRINGFIELD, MASSACHU- SETTS, A CORPORATION.

HEATING-FURNACE.

SPECIFICATION forming part of Letters Patent No. 731,333, dated June 16, 1903. Application filed February 1'7, 1903. Serial No. 143,745. (No model.)

To all whom zit may concern:

- Be it known that I, JOHN F. BARKER, a citizen of the United States of America, residing at Springfield, in the county of Hampden and 5 State of Massachusetts, have invented new and useful Improvements in Heating-Fur naces, of which the following is a specification. This invention relates to'the construction of gas forges or furnaces, this term being used,

IO however, mainly to distinguish the construc-v tion from that type in which solid fuel is burned rather than as defining specifically a type suitable only for gas, for as a matter of fact the construction herein described may be heated either by'liquid or gaseous fuel; and the object of the invention is to produce a forge or furnace, as it is preferably called, which may be quickly constructed, which permits of easy renewal of that portion thereof which is first to burn out, and in the construction of the interior thereof in a manner to provide a chamber or recess in one side of the furnace which extends transversely across the combustion-chamber, to- 2 5 gether with means to deflect the direction of movement of the heating element to adapt the furnace to heat articles of different shapes, a further object of the invention being to provide a furnace made of molded bricks adapted to be laid together in such manner as to leave the brick on which articles to be heated are placed free to be removed without displacing the other bricks which form part of the construction, the invention in- 3 5 eluding suitable means to bind the structural parts of the furnace together without the use of a cement.

In the drawings forming part of this application, Figure l is a perspective View, partly in section, of a furnace embodying the'in-.

vention. Fig. 2 is a sectional elevation of the furnace, taken in the plane of line 2 2, Fig. 1. Fig. 3 is a similar view to Fig. 2, taken in the plane of line 3 3, Fig. 1.

In carrying this invention into practice a suitable rectangular base-plate a is provided having upturned flanges around its border,

suitable bosses being cast on the under side thereof for the reception of legs I), and a capplate 0, having a similarly-flanged border and the same shape as the base-plate, is secured to the top of the furnace and by means of bolts 61 may be drawn toward the base-plate to clamp togetherthe bricks of which the furnace is constructed. r

The furnace properv comprises the back brick 6, two side bricks f and g, a removable bottom brick h, (which is' located between said two side bricks,) and a top brick i, which rests on the top of the two side bricks and whose rear edge abuts against the inner face of the back brick e, which is made of the full width and the full height of the furnace, asshown in the various figures of the drawings. The two side bricks f and g extend from the inner face of the back brick to the front of the furnace, there being a space between these bricks equal to the width of the bottom brick h, which abuts against the inner face of the back brick, as shown in Fig. 3, its front lying in the same plane as the front of the side bricks. The top brick z is of the same width as the back brick and extends entirely across the furnace, the rear edge abutting, as stated, against the inner faceof the back brick and its exteriorsurfaces at the front and sides lying in the same plane as the front and side bricks f and g. It will be noted, however, that from front to rear the dimensions of the bricks are such asto leave space between the plane front edge of the bricks and the upturned flanged border of the base to receive a vertically-disposed front plate j, whose upper and lower edges are located between the flanged border of the base and'cap plates and the front face of the furnace. This front platej is made with a rectangular opening it, from the lower border of which a shelf m extends outwardly, whose surface is in the plane of the upper surface of thebottom' brick h, the upper border of said opening lying in the plane of the under side of the top brick and thesides of the opening registering with the inner faces of the two side bricks.

Through one of the side bricks, as f, a hole 0 is formed for the introduction of the gaseous or liquid heating element, and to support the pipe or burner whereby this fuel may be delivered into the furnace a bar 19 is provided, having a tubular projection q thereon into which the end of the burner or pipe may be introduced and wherein it may be secured by means of a set-screw r or other suitable fastening device. In the side of the brickf and in the end of the top brick t' a depression is molded to receive the harp, whose upper and lower ends are located inside of the flange of the top and bottom plates, whereby said bar may be retained in position in the completed furnace.

In the upper side of the bottom brick h there is a transversely-disposed depression 8, extending entirely across said bottom brick and shown in cross-section in Fig. 3, and the hole 0 opens into one end of said depression 8. A heating-chamber i, registering, substantially, with the opening 7c in the front plate j, extends through to the back brick e transversely of the depression 8 in the bottom bricks, the general proportions of this heating-chamber being such that there is substantially an equal part thereof on each side of said depression .9.

In the top brick i there is an opening a, which is of the same dimensions as the depression s and is located vertically over it. This opening extends entirely through the top brick, as shown, and in the cap-plate 0 there is an opening which registers, substantially, with this opening a. The interior of the furnace therefore consists, essentially, of

two chambers intercepting each other at right angles, one chamber being indicated by t and the other by s and u.

While this furnace may be adapted to a variety of uses, it is especially adapted to the heating of soldering-irons, either in the usual straight type or what is known as the hatchet-iron, such as is shown in Fig. 4.

If the furnace is to be used for the straight form of iron, then by means of a suitablyformed brick U the opening u in the top brick 'IL is closed, as shown in the drawings, and the irons are inserted through the opening 70, the point of the iron resting in that part of the chamber if beyond the depression s, whereby the direct blast of fire may be applied directly to the body of the iron only. If, however, it is desired to heat the form of iron shown in Fig. at, the brick o is used to close the opening 7c in the front brick, as shown in dotted lines in Fig. 3, the iron being entered through the opening u.

In use the upper surface of the bottom brick on which the article to be heated rests is the first to wear, and it is desirable to be able to quickly restore the chamber t to its normal form, and to that end the furnace is constructed to permit the easy removal of the bottom brick, which may be effected by loosening the bolts (1 enough to permit the removal of the front plate j, whereupon the bottom brick may be pulled out and a new one put in its place, the operation requiring but a few moments time and being rendered possible only because of the use of the molded bricks, which have fairly smooth surfaces, and thus may be laid up without cement and in such manner as to leave the bottom brick free.

Obviously the bricks constituting the furnace proper may be made of any size desired and the chambers within the furnace be also varied in their dimensions, as desired, to adapt the furnace to various kinds of work.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

1. A heatingfurnace made up of loose bricks, two flanged plates between which the bricks are secured, and clamping means to forcibly bind the bricks together, said furnace comprising two internal chambers intercepting each other at right angles, there being an opening through the wall of the furnace into one end of one of said chambers for the introduction of gaseous or liquid fuel, and another end of one of said chambers extending through another wall of the furnace.

2. A heating-furnace composed of loose bricks, and clamping means to secure said bricks together, said furnace comprising two internal chambers intercepting each other at right angles, one end of each chamber extending through the wall of the furnace, together with means to close one of said open ends.

3. A heating-furnace composed of loose bricks, and clamping means to secure said bricks together, said furnace comprising two internal chambers intercepting each other at right angles, one end of each chamber extending through the wall of the furnace, together with means to close one of said open ends, a portion of one of said chambers being located in a brick adapted to be removed without disturbing the other bricks.

4. A heating-furnace composed of loose bricks consisting of a back brick, two side bricks, and a bottom brick arranged to provide in said furnace two internal chambers intercepting one another at right angles; a portion of one of said chambers being located in said bottom brick, and the latter being removable without disturbing the other bricks.

5. A heating-furnace consisting of looselylaid-up bricks, a top plate, a bottom plate, and a front plate adapted to be clamped between said top and bottom plates; bolts passing through these last-named plates to clamp said bricks therebetween, there being two internal chambers in the furnace intercepting ICC each other at right angles, one of each of said said pipe-support, extending into the lower chambers being open to the atmosphere, reend of one of said chambers. spectively through the top plate and through the front plate; a bar located in a recess in 5 the side of the furnace between the top and Witnesses: bottom plates, and means on the bar to sup- WM. H. OHAPIN,

port a pipe, there being an opening opposite K. I. OLEMONS.

JOHN F. BARKER. 

